Hydrothermal synthesis of CdSe nanoparticles

Juandria V. Williams, Claire N. Adams, Nicholas A. Kotov, Phillip E. Savage

Research output: Contribution to journalArticle

33 Scopus citations

Abstract

We report herein the feasibility of CdSe nanoparticle synthesis in high-temperature water. The base-case experimental conditions (T = 200°C, Cd/Se molar ratio = 8:1, and a reaction time, t, of 1.5 min) produced nanoparticles that exhibited quantum confinement behavior. The quantum yield was 1.5%, but it was easily increased to approximately 7% by adding a CdS shell. The mean particle size can be manipulated by changing the process variables. The particle size increased with increasing reaction time, temperature, stabilizer concentration, and Cd/Se ratio. The mean size decreased with increasing pH. This effort is a step in the development of alternative syntheses that can reduce limitations posed by current approaches.

Original languageEnglish (US)
Pages (from-to)4358-4362
Number of pages5
JournalIndustrial and Engineering Chemistry Research
Volume46
Issue number13
DOIs
StatePublished - Jun 20 2007

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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